mcs/class/System.Data/System.Data.OleDb/OleDbPermission.cs

   1 //
   2 // System.Data.OleDb.OleDbPermission
   3 //
   4 // Author:
   5 //      Rodrigo Moya (rodrigo@ximian.com)
   6 //      Tim Coleman (tim@timcoleman.com)
   7 //      Sebastien Pouliot  <sebastien@ximian.com>
   8 //
   9 // Copyright (C) Rodrigo Moya, 2002
  10 // Copyright (C) Tim Coleman, 2002
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System.ComponentModel;
  34 using System.Data.Common;
  35 using System.Security;
  36 using System.Security.Permissions;
  37
  38 namespace System.Data.OleDb {
  39
  40         [Serializable]
  41         public sealed class OleDbPermission : DBDataPermission {
  42
  43                 #region Fields
  44
  45                 private string _provider;
  46
  47                 #endregion // Fields
  48
  49                 #region Constructors
  50
  51 #if NET_1_1
  52                 [Obsolete ("use OleDbPermission(PermissionState.None)", true)]
  53 #endif
  54                 public OleDbPermission ()
  55                         : base (PermissionState.None)
  56                 {
  57                 }
  58
  59                 public OleDbPermission (PermissionState state)
  60                         : base (state)
  61                 {
  62                 }
  63
  64 #if NET_1_1
  65                 [Obsolete ("use OleDbPermission(PermissionState.None)", true)]
  66 #endif
  67                 public OleDbPermission (PermissionState state, bool allowBlankPassword)
  68                         : base (state)
  69                 {
  70                         AllowBlankPassword = allowBlankPassword;
  71                 }
  72
  73                 // required for Copy method
  74                 internal OleDbPermission (DBDataPermission permission)
  75                         : base (permission)
  76                 {
  77                 }
  78
  79                 // easier (and common) permission creation from attribute class
  80                 internal OleDbPermission (DBDataPermissionAttribute attribute)
  81                         : base (attribute)
  82                 {
  83                 }
  84
  85                 #endregion
  86
  87                 #region Properties
  88
  89 #if NET_2_0
  90                 [Obsolete ()]
  91                 [EditorBrowsableAttribute (EditorBrowsableState.Never)]
  92 #endif
  93                 public string Provider {
  94                         get {
  95                                 if (_provider == null)
  96                                         return String.Empty;
  97                                 return _provider;
  98                         }
  99                         set { _provider = value; }
 100                 }
 101
 102                 #endregion
 103
 104                 #region Methods
 105
 106                 public override IPermission Copy ()
 107                 {
 108                         return new OleDbPermission (this);
 109                 }
 110
 111 #if !NET_2_0
 112                 // methods required to support Provider were removed in Fx 2.0
 113                 // i.e. Provider isn't included in the XML output
 114
 115                 public override void FromXml (SecurityElement securityElement)
 116                 {
 117                         base.FromXml (securityElement);
 118                         // Provider
 119                 }
 120
 121                 [MonoTODO ("is it worth to implement as it is being removed ?")]
 122                 public override IPermission Intersect (IPermission target)
 123                 {
 124                         return base.Intersect (target);
 125                 }
 126
 127                 public override SecurityElement ToXml ()
 128                 {
 129                         SecurityElement se = base.ToXml ();
 130                         // add Provider
 131                         return se;
 132                 }
 133
 134                 [MonoTODO ("is it worth to implement as it is being removed ?")]
 135                 public override IPermission Union (IPermission target)
 136                 {
 137                         return base.Union (target);
 138                 }
 139 #endif
 140                 #endregion
 141         }
 142 }